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Associative Containers

Associative Containers. CIS 237 – Data Structures. Sets. Stores keys Duplicates not allowed Simply needs to know if in set Used to implement the mathematical concept. 10. A. A 10. 5. !. H 34. 32. B. P 9. i. 90. B 77. ;. 27. Y 56. Set Examples. Set of characters.

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Associative Containers

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  1. Associative Containers CIS 237 – Data Structures

  2. Sets • Stores keys • Duplicates not allowed • Simply needs to know if in set • Used to implement the mathematical concept

  3. 10 A A 10 5 ! H 34 32 B P 9 i 90 B 77 ; 27 Y 56 Set Examples Set of characters Set of integers Set of counters

  4. Set Operations • s.count() • s.empty() • s.size() • s.find(value) • s.insert(value) • s.erase(value) • s.erase(itr) • s.begin • s.end

  5. Mathematical Set Operations • Union (+) • Intersection (*) • Difference (-)

  6. B 5 A 3 X 9 Maps • Stores key-value pair • map<t1, t2>::value_type entry(keyValue, value) • Entries identified by key • Two templates

  7. Map Operations • map<keyType, dataType> m • map< keyType, dataType>::iterator itr • m.insert(key_value_pair) • m[key] • m.erase(key) • m.erase(itr) • m.size • m.empty • m.begin • m.end

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